DESCRIPTION

The MP2104 is a 1.7MHz constant frequency, current mode, PWM step-down converter. The device integrates a main switch and a synchronous rectifier for high efficiency without an external Schottky diode. It is ideal for powering portable equipment that runs from a single cell Lithium-Ion (Li+) battery. The MP2104 can supply 600mA of load current from a 2.5V to 6V input voltage. The output voltage for the MP2104DJ can be regulated as low as 0.6V, while the output voltages of the MP2104DJ-1.5 and MP2104DJ-1.8 are fixed at 1.5V and 1.8V, respectively. The MP2104 can also run at 100 duty cycle for low dropout applications.

FEATURES

? High Efficiency: Up to 95

? 1.7MHz Constant Switching Frequency

? 600mA Available Load Current

? 2.5V to 6V Input Voltage Range

? Output Voltage as Low as 0.6V

? 100 Duty Cycle in Dropout

? Current Mode Control

? Short Circuit Protection

? Thermal Fault Protection

? <0.1μA Shutdown Current

? 1.5V and 1.8V Fixed Output Versions

? Space Saving 5-Pin TSOT23 Package

APPLICATIONS

? Cellular and Smart Phones

? Microprocessors and DSP Core Supplies

? PDAs

? MP3 Players

? Digital Still and Video Cameras

? Portable Instruments